diff --git a/src/controls/QskMenuSkinlet.cpp b/src/controls/QskMenuSkinlet.cpp
index 90e945ba..33ab776a 100644
--- a/src/controls/QskMenuSkinlet.cpp
+++ b/src/controls/QskMenuSkinlet.cpp
@@ -14,6 +14,7 @@
 #include <QskFunctions.h>
 
 #include <qfontmetrics.h>
+#include <qmath.h>
 
 template< class T >
 static inline QVariant qskSampleAt( const QskMenu* menu, int index )